i am probably missing something real simple but i cant find the answer anywhere. VS2017 VB.net project copied FiltersDllDotNet.dll to my project registered resouce FiltersDllDotNet.dll Imports Filters = FiltersDllDotNet.Filters while "Filters.initialize()" is available, "Filters.getParametersCount(filter)" errors: getParametersCount is not a member i downloaded "filtersTest-3.3-2009_12" but can't realy find any answer there either. what am i missing? Thanks for all the help!